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package fr.vod.gauss.operations;

/**
 *
 * @author drazanakoto
 */
public class CorpsDeGalloisOperation implements Operation {
    
    private GF256 gf256;
    
    /**
     * 
     */
    public CorpsDeGalloisOperation(){
        gf256 = new GF256();
    }
    
    @Override
    public int addition(int a, int b) {
        return a ^ b;
    }

    @Override
    public int soustraction(int a, int b) {
        return addition(a, b);
    }

    @Override
    public int multiplication(int a, int b) {
        return gf256.multiplication(a, b);
    }

    @Override
    public int division(int a, int b) throws ArithmeticException {
        if (b == 0) {
            throw new ArithmeticException();
        }
        return gf256.division(a, b);
    }
}
